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Title:Visokotemperaturna oksidacija kompozita Cu-C
Authors:ID Rudolf, Rebeka (Author)
ID Anžel, Ivan (Author)
ID Križman, Alojz (Author)
ID Inštitut za kovinske materiale in tehnologije (Copyright holder)
Files:.pdf Materiali_in_tehnologije_2001_Rudolf,_Anzel,_Krizman_Visokotemperaturna_oksidacija_kompozita_Cu-C.pdf (369,22 KB)
MD5: 836EED894416A90D89D66BDDEC03D2A4
PID: 20.500.12556/dkum/7b9d59fd-6ad7-480d-b025-cbac033b6576
 
URL http://mit.imt.si/Revija/izvodi/mit015/rudolf.pdf
 
Language:Slovenian
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Baker je odličen toplotni in električni prevodnik ter ne reagira tako intenzivno s kisikom kot večina drugih kovin, zato je razmišljanje o njegovi uporabi pri visokih temperaturah dokaj smiselno. Ker pa ima slabe mehanske lastnosti, mu jih je potrebno izboljšati, kar lahko dosežemo z dodatkom utrjevalnih faz. Kot utrjevalna faza se pogosto uporablja grafit, za katerega je značilno, da intenzivno reagira s kisikom tako v zračni atmosferi, kakor tudi v atmosferah z bistveno nižjim parcialnim tlakom kisika. Ker nastajajo pri takšni reakciji grafita s kisikom plinski produkti, delujejo posledično v notranjosti kompozita visoki tlaki, zaradi katerih se lahko material v mikrometerskem smislu poškoduje in izgubi dobre mehanske lastnosti. Namen našega dela, katerega del rezultatov predstavljamo v tem prispevku, je bil raziskati mahanizem oksidacije grafita v Cu-matici ter ugotoviti vpliv te reakcije na mikrostrukturo kompozitnega gradiva.
Keywords:metalurgija, bakrovi kompoziti, visokotemperaturna oksidacija, mikrostruktura
Publication status:Published
Publication version:Version of Record
Year of publishing:2001
Number of pages:str. 219-226
Numbering:Letn. 35, št. 5
PID:20.500.12556/DKUM-27979 New window
ISSN:1580-2949
UDC:669.018.95:669.3:620.18
ISSN on article:1580-2949
COBISS.SI-ID:6668054 New window
NUK URN:URN:SI:UM:DK:FI6XKYW3
Publication date in DKUM:01.06.2012
Views:1452
Downloads:94
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Categories:Misc.
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Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 New window

Secondary language

Language:English
Title:Copper has a high thermal and electrical conducivity and it does not react intensively with oxygen like most other metals, therefore, the speculation about its use at high temperature is justified. On the other hand, copper has poor mechanical properties,
Abstract:Copper has a high thermal and electrical conductivity and it does not react intensively with oxygen like most other metals, therefore, the speculation about its use at high temperature is justified. On the other hand, copper has poor mechanical properties, which must be improved by adding reinforcement elements. Graphite is often used for reinforcement elements, but it reacts very fast with oxygen in the air and in the atmosphere with a low partial pressure of oxygen. Gas products are formed in the reaction of graphite with oxygen, and consequently high pressures inside the composite occur. The material can be damaged at the micron level and can lose its good mechanical properties.
Keywords:metallurgy, copper composites, high temperature oxidation, microstructure


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